# A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.00 gallons, what is the boiling point of the solution?

42,689 results, page 18
1. ## chemistry

A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 10.23

asked by sara on April 10, 2013
2. ## Physics

A 10.2 kg weather rocket generates a thrust of 200N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 500N/m, is anchored to the ground. a) Initially before the engine is ignited,

asked by Alexandra on November 25, 2010
3. ## English

I left out the following sentences. Thank you very much. 1) His dictionary definition of a horse underlines how Mr. Gradgrind has choked his Bitzer's imagination. 2) The black of the soot (can soot be replaced by ash and smoke?). 3) Dickens compares the

asked by Matthew on March 28, 2012
4. ## physics

A 11.6 kg weather rocket generates a thrust of 215.0 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 399.0 N/m, is anchored to the ground. Initially, before the engine is

asked by Anonymous on November 1, 2009
5. ## physics

The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.34 m3. What is the weight of the heaviest bear that the ice can support without sinking completely

asked by Anonymous on November 17, 2012
6. ## Solid Mensuration

a hemispherical container contains water to a depth of 10cm. If the volume of the water inside the container is 5000pi/3cm^3,find the diameter of the vessel. (i already tried using V=2/3 pi r^3 since it is a hemisphere but my answer and the answer of the

asked by Yell on March 25, 2015
7. ## physics

The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 3.25 m3. What is the weight of the heaviest bear that the ice can support without sinking completely

asked by Lucy on November 1, 2012
8. ## PHYSICS

The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.70 m3. What is the weight of the heaviest bear that the ice can support without sinking completely

asked by Anonymous on November 16, 2015
9. ## general physics

The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 6.76 m3. What is the weight of the heaviest bear that the ice can support without sinking completely

10. ## physics

The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 4.41 m3. What is the weight of the heaviest bear that the ice can support without sinking completely

asked by hannah on February 9, 2012
11. ## Chemistry

Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O). Write a balanced equation for this reaction. Assuming that all volume measurements occur at the same temperature and pressure,

asked by X on February 20, 2015
12. ## Chemistry

Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O). Write a balanced equation for this reaction. Assuming that all volume measurements occur at the same temperature and pressure,

asked by O on March 6, 2015
13. ## CHEM

how do I work this question out?: 50.00g of NaCl are dissolved in water to give a solution that contains 2.500% NaCl by mass. The density of the solution is 1.030g/mL. The volume of the solution is: a)941.8mL; b)1.942L; c)2.500L; and, d)50.0mL. I know the

asked by K on December 11, 2006
14. ## Org. Chem.

Is there a correlation between the values of the distribution coefficients and the polarities of the three compounds? Explain. Place 0.050 g of one of the solids (benzoic acid, succinic acid, or sodium benzoate) in a vial and add 2 mL of methylene chloride

asked by CM on September 22, 2009
15. ## Hillbrow s.s.s

question1 multiple choice.. 1.1.1 The only type of soil water that available to plants is... A gravitation water B hygroscopic water C capillary water D swell water

asked by mfayise sinovuyo on October 23, 2015
16. ## chemistry

Why is it important to make sure that the volume of water and the starting temperature are the same in each trial ?

asked by danny on October 28, 2014
17. ## Physics

An object has a volume of 4.0m^3 and weighs 40,000 Newtons. What will be its weight in water?

asked by Lucy on January 7, 2015
18. ## physics

if an iron cube of volume 400cm3 is immersed in water,the upthrust will be?

asked by aisha on March 19, 2015
19. ## chemistry

What volume of oxygen is consumed when 9g of water is formed when butane is burnt?

asked by Oliver on March 10, 2013
20. ## Science

How does water displacement work when finding the volume of an irregular object?

asked by Nikki on October 9, 2013
21. ## science

How would I calculate the true volume? is it the mass/density(temperature of water)?

asked by Boborto on September 19, 2018
22. ## General Chemistry

What effect would tap water have on the volume of EDTA required for titration?

asked by Kasia on October 19, 2012
23. ## Science

What is the volume of the rock if the water level rises to the 120 ML mark

asked by Fidel on November 29, 2016
24. ## Chemistry

Which of the following is NOT TRUE? A. The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20). B. The volume required to titrate the blank is subtracted from the volume used to titrate the analyte solution to give

25. ## chemistry

Given: Ti=298K V=.005 L Pt=1 atm P H20 vapor= .0313atm P air= .9687 atm you increase the temperature to 338K; the total pressure remains 1 atm, but the volume increases. Determine the volume at the new temperature (assume water vapor reaches equilibrium at

asked by Kellie on July 6, 2012
26. ## General Science

Surface water is important because it? 1. furnishes plants with water 2. provides a supply of drinking water 3. contributes to the water cycle 4. supplies water to rivers during dry periods

asked by Anonymous on May 13, 2009
27. ## Earth science

A sphere was dropped into water in a graduated cylinder as shown in the following diagram.The water level rose th the new level shown .What is the volume of the sphere

asked by Anonymous on September 29, 2014
28. ## chemistry

how to find the pressure exerted by the hydrogen alone? and the volume of dry hydrogen at SATP? i have room temperature=23C room pressure =101.62kPa volume of h2 gas & H2O vapour collected =43.2ml temperature of water = 23C length of Mg ribbon = 3.00cm

asked by Riana on January 22, 2013

'A buffer is prepared by mixing a 100.omL of a 0.100 M NH3 solution with a 0.200M solution of NH4CL solution and making the total volume up to 1.000L of water. What is the volume of NH4Cl solution required to achieve a buffer at ph=9.5? Ka of

asked by jemima on December 11, 2012
30. ## math

The portion of a swimming pool that is below the full water line measures 12 feet by 30 feet by 6 feet deep. what is the volume of the water in the swimming pool when it is fully, expressed in cubic yards? (1 cu yd= 27 cu ft )

asked by Anonymous on March 24, 2012
31. ## physics

an aluminum object has a mass of 27 kg & a density of 2700 kg/m^3. it is hung from a rope under the surface of water (density=1000 kg/m^3). what is the volume of the object and the tension in the string, while the object hangs from it & also under the

asked by john on March 16, 2010
32. ## chemistry

cold water mass of calimeter+ water: 68.66g mass of calimeter: 19.19g mass of water: 49.47g final temperature of water: 39.1C initial temperature of water: 25.5C delta(T) of water: 13.6C hot water mass of calimeter+ water: 79.55g mass of calimeter: 20.61g

asked by Yuli on December 1, 2011
33. ## SCIENCE HELP

CAN SOMEONE CHECK THESE!! 1. Which of the following is a reason why a person might want to wear snowshoes if walking a distance in deep snow? (1 point) snowshoes spread the person’s weight out snowshoes reduce the amount of pressure on a given spot

asked by gabby on May 28, 2016

a company bought 50lb of kona beans at $34.95 per lb. and plans to mix these with colombian beans at$7.99 per lb. wholesale. If they want the blend to be $11.95 per lb, how many lbs of colombian beans should they buy? asked by Shelly on April 11, 2011 35. ## Algebra Two varieties of herbal tea, one cost$4.00 per kilogram other cost $5.00 per kilogram. How many kilograms of each type are needed to make 20kg of a blend worth$4.60 per kilogram?

asked by TinaG on May 25, 2010
36. ## chemistry

(a) A person drinks four glasses of cold water (3.0°C) every day. The volume of each glass is 2.5x10^2 mL. How much heat (in kJ) does the body have to supply to raise the temperature of the water to 37°C, the body temperature? (b) How much heat would

asked by Amber on November 14, 2011
37. ## Biology /science

How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid

asked by Kylie on February 10, 2016
38. ## Science

How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid

asked by Kylie on February 10, 2016
39. ## chemistry

146 mL of wet H2 gas is collected over water at 29.0 degrees celsius and room pressure of 750 torr. give the volume of the dry H2 gas collected at STP, give the mass of the dry H2 collected, and give the volume of the dry H2 at room conditions and the

asked by melanie on December 9, 2010
40. ## Chem

I have a problem, the density of the metal = mass (2) - mass (1) over Volume (2) - Volume (1) = My first mass and volume are 15.098g and 5.5 mL. the second mass and volume are 11.3235g and 4.0 mL. I got 9.04g/mL as my answer if this isn’t right can you

asked by Jackson on September 28, 2010
41. ## Chemistry

Heyy, okay I have this question about chemistry and its driving me nuts. It feels like I am so close but am just missing something. The question is: A vessel of 6.84 L in volume contains 3.61 L of pure water at 25°C. A partial pressure of 3.67 atm of CO2

asked by Tracy on February 4, 2007
42. ## Chemistry

1. Calculate the acetylsalicylic acid concentration (in mg/mL) of aspirin solution #2 in the Procedure section. Assume that 300 mg of acetylsalicylic acid has been weighed out. 2.3. (3 pts) Calculate the acetylsalicylic acid concentrations (in mg/mL) of

asked by Cassie on April 10, 2012
43. ## science (density)

1) mass=100g, volume=10ml,density= 2) volume=7ml, mass=70g, density= 3) mass=50g, volume=10cm3, density= 4) volume=30cm3,mas=90g,density= 5) mass=120,volume=6ml,density= Thanks everyone i apresheate your help.

asked by Carly on October 9, 2008
44. ## science (density)

1) mass=100g, volume=10ml,density= 2) volume=7ml, mass=70g, density= 3) mass=50g, volume=10cm3, density= 4) volume=30cm3,mas=90g,density= 5) mass=120,volume=6ml,density= Thanks everyone i apresheate your help.

asked by Carly on October 9, 2008
45. ## physics

please check these; a container of gas is at pressure of 3.7*10^3 Pa. How much work is done by the gas if its volume expands by 1.6 m. 5.92 * 10^5 A 0.10 kg piece of copper at an initial temperature of 95degC is dropped into 0.20 kg of water contained in a

asked by y912f on February 17, 2009
46. ## physics

please check these; a container of gas is at pressure of 3.7*10^3 Pa. How much work is done by the gas if its volume expands by 1.6 m. 5.92 * 10^5 A 0.10 kg piece of copper at an initial temperature of 95degC is dropped into 0.20 kg of water contained in a

asked by y912f on February 18, 2009
47. ## Chemistry- Drbob-help

I have placed the answer I got please help. A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 870mL

asked by Paul on February 10, 2011
48. ## chemistry

Bill finds an unusual object and wishes to calculate it's density. He discovers a problem of accurately weighing it, because it won't stay on the weighing pan. To solve this he adds the object to a beaker containing 190 mL of distilled water and finds the

asked by abbey on September 8, 2009
49. ## Chemistry

A 0.464 gram sample of a metal, M, reacts completely with sulfuric acid according to: M(s) +H2SO4(aq)=MSO4(aq)+H2(g) A volume of 211 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level.

asked by Raul on March 9, 2013
50. ## Chemistry

A 0.250g smaple of magnesium-aluminum alloy dissolves completely in an excess of HCl(aq). When the liberated H2(g) is collected over water at 29C at 752torr, the volume is found to be 297mL. The vapor pressure of water at 29C is 30.0torr. What is the mass

asked by Cynthia on October 10, 2011
51. ## chemistry

A CHM 111 student recorded the mass of a piece of dry lead metal as 23.7412 g. He obtained a graduated cylinder and recorded an initial water volume of 25.0 mL; upon addition of the metal, the water level rose to 27.1 mL. Calculate the density of lead in

asked by dani on January 25, 2015
52. ## algebra

coffee shop plans to mix grage a cogge costing $9.50/lb and grade b coffee costing &7 /lb to yield a 20lb blen costing$8.50/lb. how many pounds of each to make the blend? a=b=20 9.5a+7b=170

asked by lisa on December 12, 2015
53. ## physics

A board that is 20 cm wide, 5 cm thick, and 3 m long has a density of 350 kg/m^3. The board is floating partially submerged in water do density 100 kg/m^3. What fraction of the volume of the board is floating above water?;

asked by David on July 14, 2013
54. ## chemistry

Bottle A has a volume of 1.2 L, When Filled with sugar water the bottle has a total mass of 5.0 pounds. If the empty bottle has a mass of 800 grams. determine the density of the sugar water in g/mL.

asked by Yoyo on August 17, 2011
55. ## Physics

Hey guys - this problem is pretty tough for me...any help? Don't know what to do.... In seawater, a life preserver with a volume of 4.00×10^−2 m^3 will support a 76.0 kg person (average density 980 kg/m^3), with 20.0 % of the person's volume above water

asked by Randi on January 29, 2010
56. ## Physics

The engine is in the back of the train it is pushing. The passengers were in the car closest to the engine. There were five cars in total. The front car had one person in it. When he noticed a semi truck trailer sitting on the track he pulled the emergency

asked by Dakota on July 4, 2011
57. ## Heat!!!

Can you please check my answers. My teacher gave me a list of 200 questions to study, but I lost the answer sheet. Can you please help me with these 23 Thanks 1. A silver bar 0.125 meter long is subjected to a temperature change from 200°C to 100°C. What

asked by Brooke on July 5, 2011
58. ## Chemistry

Hi, i'm really desperate! could anyone please help me with this question, I'm stumped. 'A buffer is prepared by mixing a 100.omL of a 0.100 M NH3 solution with a 0.200M solution of NH4CL solution and making the total volume up to 1.000L of water. What is

asked by emily on December 11, 2012
59. ## chemistry

A solution is prepared by dissolving 20.2 {\rm mL} of methanol ({\rm{CH}}_3 {\rm{OH}}) in 100.0 {\rm mL} of water at 25 ^\circ {\rm C}. The final volume of the solution is 118 {\rm mL}. The densities of methanol and water at this temperature are 0.782 {\rm

asked by aa on July 14, 2012
60. ## physics

A student is thrown in a lake by his teacher, the student has a mass of 70 kg and a volume of 80,000 cm^3. Would the student sink or float? What is the net force on the student? What is the density of an object that has a mass of 2000 kg and a volume of

asked by John on July 14, 2015
61. ## Calculus

The tank shown is full of water. Given that water weighs 62.5 lb/ft3, find the work required to pump the water out of the tank. The tank shown is a hemisphere with r = 5 ft. The water is to be pumped out at the top. First I solved for ri, ri / (5 - xi) = 5

asked by COFFEE on June 24, 2007
62. ## Physics, help!

A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage) An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115°C. It absorbs 4250 cal per cycle at

asked by Sierra on January 18, 2013
63. ## math

East Battle Lake in Minnesota covers an area of about 1950 acres or 8.5X10^7 square feet and its average depth is about 3.2x10^1 feet. a. Estimate the cubic feet of water in the lake. (hint: Volume=area x average depth.) b. One cubic foot of water equals

asked by nikkisopretti on February 4, 2013
64. ## physics

The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. As shown is the figure, a polar bear climbs onto a piece of ice, which has a volume of 5.75 m3, and is floating in sea water. a) What is the mass of the piece of ice? b) What is

asked by Chris on March 9, 2013
65. ## chemistry

Acetylene(C2H2), an important fuel in welding, is produced in the laboratory when calcium carbide (CaC2) reacts with water: CaC2(s) + 2H20(l) → C2H2(g) + Ca(OH)2(aq) For a sample of acetylene collected over water, total gas pressure (adjusted to

asked by vishal on January 1, 2015
66. ## Social Studies 2

How is acting like water an example of following the teachings of Daoism? A. because although water is clear, it can be colored different colors B. because over time, water is stronger than rock C. because water is found all over the earth D. because water

asked by Hi Sisters on October 24, 2018
67. ## Chemistry

Assume that 5.00 grams of zinc react with excess HCl according to the following equation: Zn + 2HCl = ZnCl2 + H2 The hydrogen was collected over water at 20.0C and the prssure of the atmosphere is 751 mmHg. The pressure of the water vapor at 20C is 17.5

asked by Michael on January 17, 2017
68. ## Physics

A block of wood with volume V floats in water with 0.68V submerged. In oil the block floats with 0.86V of its volume submerged. What's the density of the wood?

asked by Ray on November 17, 2009
69. ## physics

An object floats on water with 84% of its volume below the surface. The same object when placed in another liquid floats on that liquid with 74% of its volume below the surface. Determine the density of the unknown fluid

asked by ayesha on April 16, 2014
70. ## Chemistry

Which measuring device in the Laboratory would be most accurately measure the volume of 25.0 grams of water?

asked by Coleen on August 6, 2011
71. ## chemistry

Suppose this block is dropped into 25.0ml of water. What will be the new volume reading? Help me please . I dot get it!!

asked by lala on September 23, 2011
72. ## chemistry

Determine the volume of H gas needed to react completely with 5.00 L of O to form water ?

asked by Anonymous on April 21, 2010
73. ## chemistry

if 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?

asked by jo on September 22, 2009
74. ## hydraulics

Arock weighs 1000N in air and 609N in water.Find its volume.

asked by Melaku on December 14, 2016
75. ## science

a solution made from 35 mL of ethanol and 65 mL of water produces by what percent concentration of volume

asked by frances on September 26, 2012
76. ## chemistry

in order to dilute 40.0 ml of .600 m hcl to .100 m, the volume of water that would need to be added would be?

asked by Anonymous on March 26, 2012
77. ## Chemistry

Calculate the volume of water, in milliliters, that would be displaced by a piece of gold weighing 18.2g.

asked by Anne on September 13, 2012
78. ## science

A substance has a mass of 12.5 grams and a volume of 9.8 ml.Will the object sink or float in water?

asked by marshall on March 1, 2013
79. ## Chemistry

Calculate the volume of water, in milliliters, that would be displaced by a piece of gold weighing 18.2g.

asked by Anne on September 13, 2012
80. ## phy

A piece of plastic barely floats in water. If it has a mass of 20g, what is its volume?

asked by christ on January 25, 2013
81. ## Chemistry

If you have 1 sack of cotton (which is expected to float on water) and were asked to measure the volume, what will you do?

asked by Kian on July 30, 2011
82. ## Chemistry

Calculate the volume of water, in milliliters, that would be displaced by a piece of gold weighing 18.2g.

asked by Anne on September 13, 2012
83. ## Science

how many ml of water are present in 250ml of a 15% by volume oguous hydrocloric acid solution?

asked by Araceli on July 7, 2014
84. ## Chemistry

How much corn syrup should be added to water to make 200 ml of a 10% by volume solution?

asked by P on March 14, 2009
85. ## Chemistry

If 26.4 L of H2 reacted with 13.2 L of O2 at STP, what is the volume of the gaseous water collected assuming that none of it condenses?

asked by :) on December 12, 2011
86. ## chemistry

calculate the volume of water in mL needed to make 75% solution containing 50g of CaCl2

asked by Quinne on March 16, 2011
87. ## math

Find the volume of water in a fish tank that is 4 m long, 1.7 m wide, and 54 cm deep?

asked by pam on February 7, 2011
88. ## science

based on the relationship between mass and volume.... How much space would 75 grams of water occupy?

asked by jake on January 6, 2011
89. ## AP chemistry

If 25.0g of water are decomposed at RTP how would you find the volume of hydrogen gas produced?

asked by Lily on January 7, 2011
90. ## science

if 10 mol of hydrogen reacted with oxygen what volume of liquid water could be produced

asked by jo on September 22, 2009
91. ## physics

A plastic bobber just barely floats in water. If it weighs 2N in the air, what is its volume

asked by mike on June 25, 2010
92. ## Conceptual Physical Science

When we breathe we inhale oxygen, O2, plus water vapor, O2, and exhale carbon dioxide, CO2, plus water vapor, H2O. Which likely has more mass, the air that we inhale or the same volume of air we exhale? Does breathing cause you to lose or gain weight?

asked by Laticia on July 10, 2010
93. ## Chemistry

If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s) + 3 H2O(l) => 3 MgO(s) + 2 NH3(g) If 11.1 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 23°C and 739 mm

asked by sam on November 19, 2012
94. ## Quantitative Methods

1. Management of Sundown Rent-a-Car (see Problem 8-8) has decided that perhaps the cost during the six-month period is not the appropriate Cost to minimize because the agency may still be obligated to additional months on some leases after that time. For

asked by Kayla on April 24, 2014
95. ## phyics

Ethyl alcohol has been added to 190 {\rm mL} of water in a container that has a mass of 140 {\rm g} when empty. The resulting container and liquid mixture has a mass of 450 {\rm g}. What volume of alcohol was added to the water? Express your answer using

96. ## Physics

A rock weighs 140 N in air and has a volume of 0.00273 m3. What is its apparent weight when sub- merged in water? The acceleration of gravity is 9.8 m/s2 . Answer in units of N. If it is submerged in a liquid with a density exactly 1.9 times that of water,

asked by Laura on November 28, 2010
97. ## chemistry

A microtube is found to have an ungraduated portion that will contain 0.26 g of water. Upon setting up the experimental apparatus as described in the experiment, a microtube is filled to 0.01 ml with water at 4ºC. At a temperature of 60ºC, the volume of

asked by Alex on July 24, 2009
98. ## Chemistry

Analysis of Tap water (Hardness) 50.00 mL of tap water was transferred to a 250 mL erlenmyer flask. 10mL of NH3/NH4^+ ph 10 buffer was added to the flask, as well as 6 drops of eriochrome black T indicator. This soln was then titrated with EDTA